Wiseco Chevy LS Series Forged Racing Pistons - Part K398XS, 4.000 in. Bore, Set of 8

Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders. Packed full of custom-level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco?s Professional Series. Wiseco Chevrolet LS Piston Set, 4.000 in. Bore, 1.304 in. Compression Height, 0.927 in. Pin Diameter, Professional, Set of 8.

• Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength
• Precision ring grooves, anti-detonation groove, and additional ring seal improving features
• ArmorGlide Skirt Coating: seizure resistant, friction reduction, and quieter operation
• Designed and built to withstand heavy to severe duty performance applications
• Fully machined crown features
• Forced pin oiling

Upgrade your high-performance engine with the Wiseco Chevy LS Series forged racing pistons, designed specifically for serious racers and heavy-duty applications. Crafted from 2618 aluminum in the USA, these pistons offer superior tensile strength and durability to withstand extreme conditions. The precision-machined crown and fully machined features ensure optimal combustion and sealing, while the anti-detonation groove enhances performance under high compression. The ArmorGlide skirt coating reduces friction, minimizes seizure risk, and ensures quieter operation during intense racing scenarios. These pistons include premium rings and are engineered for demanding performance, making them ideal for custom race builds or severe-duty use. Designed to fit a range of Chevrolet and Pontiac LS engines from 1998 to 2002, they are built to remove limits and deliver maximum horsepower and reliability.

Features:

• Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength

• Precision ring grooves, anti-detonation groove, and enhanced sealing features

• ArmorGlide skirt coating for seizure resistance, reduced friction, and quieter operation

• Designed to withstand heavy to severe duty performance applications

• Fully machined crown for precise combustion

• Forced pin oiling for durability and reliability in high-stress environments

Fitment:
1997 Chevrolet Corvette Base
1998 Chevrolet Camaro Z28
1998 Chevrolet Corvette Base
1998 Pontiac Firebird Formula
1999 Chevrolet Camaro Z28
1999 Chevrolet Corvette Base
1999 Pontiac Firebird Formula
2000 Chevrolet Camaro Z28
2000 Chevrolet Corvette Base
2000 Pontiac Firebird Formula
2001 Chevrolet Camaro Z28
2001 Chevrolet Corvette Base
2001 Pontiac Firebird Formula
2002 Chevrolet Camaro Z28
2002 Chevrolet Corvette Base
2002 Pontiac Firebird Formula
2003 Chevrolet Corvette Base
2004 Chevrolet Corvette Base
2004 Pontiac GTO Base

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: false
Units Per Sku: 1